Operating Information— 2230 Service
TRACE ROTATION ADJUSTMENT
NOTE
Normally, the trace will be parallel to the center hor
izontal graticule line, and TRACE ROTATION adjust
ment is not required.
1. Preset the instrument controls and obtain a baseline
trace as described in ‘‘Initial Setup.”
2. Use the Channel 1 POSITION control to move the
baseline trace to the center horizontal graticule line.
3. If the baseline trace is not parallel to the center hor
izontal graticule line, use a small-bladed screwdriver or
alignment tool to adjust the TRACE ROTATION control to
align the trace with the graticule line.
PROBE COMPENSATION
Misadjustment of probe compensation is a source of
measurement error. The attenuator probes are equipped
with a compensation adjustment. To ensure optimum
measurement accuracy, always check probe compensation
before making measurements. Probe compensation is
accomplished by:
1.
Preset the instrument controls and obtain a baseline
trace as described in “ Initial Setup.”
2. Connect the two 10X probes (supplied with the
instrument) to the CH 1 OR X and CH 2 OR Y input con
nectors. Observe that the CH 1 VOLTS/DIV readout
changes from 5 mV to 50 mV when the 10X probe is
attached to the CH 1 OR X input.
3. Remove the hook tip from the end of each probe.
NOTE
While the probe tip is in the PRB ADJ connector,
use care not to to break off the probe tip.
4. Insert the Channel 1 probe tip into the PRB ADJ
connector.
5.
Use the CH 1 POSITION control to vertically center
the display. If necessary, adjust the A TRIGGER LEVEL
control to obtain a stable display on the plus (OUT)
SLOPE.
6.
Check the waveform display for overshoot and
rounding (see Figure 2-14); if necessary, use a small-
bladed screwdriver to adjust the probe compensation for a
square front corner on the waveform.
7.
Remove the Channel 1 probe tip from the PRB ADJ
connector.
8.
Insert the Channel 2 probe tip into the PRB ADJ
connector.
9. Set the VERTICAL MODE to CH 2.
10. Set the A TRIGGER A&B INT switch to CH 2.
11. Use the CH 2 POSITION control to vertically center
the display.
12. Check the waveform display for overshoot and
rounding (see Figure 2-14); if necessary, use a small-
bladed screwdriver to adjust the probe compensation for a
square front corner on the waveform.
NOTE
Refer to the instruction manual supplied with the
probe for more complete information on the probe
and probe compensation.
C O R R E C T
F L A T
O V E R
C O M P E N -
S A T E D
( O V E R
S H O O T )
U N D E R
C O M P E N -
S A T E D
( R O U N D
I N G )
1 - 0 - 5 ) 2 9 0 6 - 1 3
..
L
_
4
1
-
V
—
y
f
..
( 4 6 5 / D f v
2-26
Figure 2-14. Probe compensation.
Summary of Contents for 2230
Page 12: ...2230 Service X The 2230 Digital Storage Oscilloscope 4998 01 ...
Page 33: ...Operating Information 2230 Service Figure 2 5 Vertical controls and connectors 2 6 ...
Page 48: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Page 56: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Page 68: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Page 76: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Page 98: ...Theory of Operation 2230 Service 499 9 06 Figure 3 6 Horizontal Amplifier block diagram 3 24 ...
Page 111: ...Theory of Operation 2230 Service 3 37 Figure 3 9 Acquisition Memory timing ...
Page 190: ...Maintenance 2230 Service 999 14 Figure 6 3 Isolated kernel timing 6 9 ...
Page 329: ...PUT Figure 9 2 S em ico n d u cto r lea d co n fig u ratio n s ...
Page 332: ...2230Service CHASSIS MOUNTED PARTS ...
Page 334: ...A14 CH 1 LOGIC BOARD ...
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Page 344: ...u sr z z o 1 ...
Page 347: ...i n 5 a O Q q o u S a o h UJ s a b c d e f g h j k l m n ...
Page 352: ......
Page 355: ...WAVEFORMS FOR DIAGRAM 5 4999 83 ...
Page 358: ...I W L U O U rc a 4 2 s ...
Page 361: ...WAVEFORMS FOR DIAGRAM 6 S 84 ...
Page 362: ...2230 Service TEST SCOPE TRIGGERED ON U665 PIN 8 FOR WAVEFORMS 31 THROUGH 33 ...
Page 365: ... I I ...
Page 366: ...A 1 6 S W E E P R EFEREN CE BOARD FIG 9 17 2230 Service Figure 9 17 A16 Sweep Reference board ...
Page 369: ... o 0 UJU sa eg aiu c u J in su eg 5 C sis n g e s o N QO ...
Page 371: ...Static Sensitive Devices See Maintenance Section CM I rv CD o 2230 Service ...
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Page 384: ... I I c o C u o a 5 r O tD v j If 3 IV if I I ci if 5 3 I ...
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Page 388: ...H K L M N 7 8 8 2 2 3 0 INPUT OUTFUT WIRING INTERCONNECT ...
Page 392: ...W A V E F O R M S F O R D IA G R A M 14 ...
Page 393: ...2230Service 0 0 d s t 4 9 9 9 9 5 ...
Page 394: ...2230 Service TEST SCOPE TRIGGERED ON U911 PIN 21 FOR WAVEFORMS 64 THROUGH 69 4999 92 ...
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Page 397: ...WAVEFORMS FOR DIAGRAM 15 TEST SCOPE TRIGGERED ON U9111 PIN 21 FOR WAVEFORMS 70 THROUGH 77 ...
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Page 415: ...IMF PU TPR A IR TM FQ U I W A V E F O R M SF O RO IA G R A M1 5 W A V E F O R M SF O R i ...
Page 417: ...4999 9S ...
Page 419: ...i s 5 0 C C p F 2 CC p 2 a u 4 I s c c O 2 e e o 5 a o 5 i 2 i f 2 E C 52 ...
Page 423: ...W A V E F O R M SF O RD IA G R A M1 8 O c n ...
Page 424: ...Figure 9 22 A11A1 Input Output board ...
Page 430: ...Figure 9 23 A11A2 Vector Generator board ...
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Page 437: ...22 3 0 S ervice W A V E F O R M S F O R D I A G R A M 2 1 m f n h ...
Page 442: ...WAVEFORMS FOR DIAGRAM 22 4999 78 ...
Page 443: ...XY PLOTTER BOARD DIAGRAM 22 See Parts List for serial number ranges ...
Page 447: ...A21 RS 232 OPTION BOARD Flfi A 9 K 01 01 W M ...
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Page 452: ...COMPONENT NUMBER EXAMPLE ...
Page 459: ...A16 SWEEP REFERENCE ADJUSTMENT LOCATION ...
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